Answer:
El volumen del cuerpo es el mismo al comienzo de la experiencia.
Explicación:
El volumen del cuerpo es el mismo al principio porque el volumen no cambia si la temperatura permanece igual. Si cambiamos la temperatura i. mi. Al aumentar la temperatura, las moléculas comienzan a expandirse y se produce un aumento de volumen mientras que cuando disminuimos la temperatura, las moléculas de esa sustancia comienzan a contraerse y el volumen de esa sustancia disminuye. Entonces concluimos que el volumen depende de la temperatura.
I. The solubility of NaCl at 25 degrees C would be between the solubilities at 20 and 30 degrees C. A reasonable answer would be 36 grams/100 g water
ii. From the table, it’s clear that the salts are more soluble at higher temperatures, indicating that an increase in temperature increases solubility.
iii. At 50 degrees C, a saturated ammonium chloride solution will have 50.6 grams of salt per 100 g water. At 20 degrees C, the solution can hold only 37.3 grams of salt per 100 g water. Thus, 13.3 grams of salt will precipitate per 100 grams of water.
Explanation:
- Combination or synthesis reaction
- Decomposition or cracking reaction
- Single replacement or single displacement
A combination or synthesis is a type of reaction that involves the formation of a single product from tow or more reactants:
K + J → KJ
The formation of a single compound form the union of their constituent element falls into this category of reaction.
The large and negative heat of formation is the driving force for this reaction.
A decomposition or cracking reaction is one in which two or more products are formed from a single reactant:
TK → T + K
The breaking down o a compound into its individual components like elements and other compounds falls into this category.
The driving force for this type of reaction is the high positive heat of formation and instability of the compound.
A single replacement or single displacement reaction is one in which a substance is replacing another.
TO + P → TP + O
The replacement of a metallic ion in solution by a metal atom higher in the activity series than the metal in a solution falls into this category of reaction.
learn more:
Chemical reaction brainly.com/question/6281756
#learnwithBrainly
Explanation:
From the word equation, it shows that when copper oxide reacts with sulphuric acid, a double replacement reaction will occur, where copper and sulphate forms a bond with each other, and so do water.
